Generally, a download manager enables downloading of large files or multiples files in one session.
Many web browsers, such as Internet Explorer 9, include a download manager.
Stand-alone download managers also are available, including the Microsoft Download Manager.

if you do not have a download manager installed, and still want to download the file(s) you've chosen, please note:

You may not be able to download multiple files at the same time.
In this case, you will have to download the files individually.
(You would have the opportunity to download individual files on the "Thank you for downloading" page after completing your download.)

Files larger than 1 GB may take much longer to download and might not download correctly.

You might not be able to pause the active downloads or resume downloads that have failed.

The Microsoft Download Manager solves these potential problems.
It gives you the ability to download multiple files at one time and download large files quickly and reliably.
It also allows you to suspend active downloads and resume downloads that have failed.

The Microsoft HPC Pack 2008 R2 SDK was designed to provide the tools and content necessary to write parallel applications for the Windows HPC Server 2008 R2 platform. The zip files are subject to the license terms for the SDK.

Note:
There are multiple files available for this download.
Once you click on the "Download" button, you will be prompted to select the files you need.

Applications made with this SDK will continue to function on clusters running HPC Pack 2008 R2 SP2, but will not make use of any new SP2-specific features. Applications made with the 'SP2' SDK will function on pre-SP2 clusters, but can not use any of the new SP2-specific features. This download is left up as a reference only. Please use the updated files.

The Microsoft HPC Pack 2008 R2 SDK with Service Pack 1, and its supplements, are designed to provide the tools and content necessary to write parallel applications for the Windows HPC Server 2008 R2 platform.
The Development Kit consists of several components:

Required: The Microsoft HPC Pack 2008 R2 SDK core package can be used to write client applications that interact with the job scheduler. Install this from sdk_x64.msi or sdk_x86.msi. You will need the HPC Pack 2008 R2 Client Utilities installed as well, those are available through the full HPC Pack 2008 R2 installer or through the Client Utilities redistributable available in the related downloads. This updated SP1 SDK supports new features available with HPC Pack 2008 R2 SP1-based clusters. Applications built with this SDK will work on pre-SP1 clusters as long as they do not use new SP1-specific features.

Files: sdk_x64.msi, sdk_x86.msi

Optional: The main Sample Code package provides a number of examples that to help you learn how to write applications that interact with or run on an HPC cluster.

Files: HPC2008R2.SampleCode.zip

Optional: The Silverlight Reporting Sample shows how to use the HPC Pack 2008 R2 reporting extensibility features to create custom cluster reports. These reports can be accessed through a Silverlight webpage and even made available to non-administrators.

Files: Reporting.Sample.zip

New: February 2011Optional: The Common Data Caching Sample shows how to use Windows Server AppFabric Caching as an in-memory cache for SOA-based workloads.